It is common for counterfeits to have more gold in them than they should. This is a function of the reason that they were created. They were not made to fool numismatists, they were made to turn gold bullion into a legal format for transport and storage. Remember it was illegal to own gold bullion for nearly half of the 20th century, so people who wanted to own gold needed to find a way to import it legally. Frequently these coins were made in the middle east and that is why the term "Lebenon Luster" exists. They are distinctive in their look and their color. As for the coin in the OP, I think it is genuine. It is what dealers refer to as "jewelry grade", meaning it has been cleaned/messed with enough that we wouldn't try to put it off onto another dealer as original, but would sell it for use in jewelry, or to other dealers who would sell it for that purpose. I would call it technically XF details, altered surfaces.
